Search found 51 matches

by Narkyy
Tue Jul 17, 2018 8:55 pm
Forum: CUDA Filters
Topic: HDR -> SDR conversion
Replies: 591
Views: 687228

Re: HDR -> SDR conversion

:hat: It looks much better at handling highlights, plus the "tm" parameter is great. Noticed some differences with v1.4 again, at this point I compare against madVR but it's getting harder to tell which is supposed to be "correct" Screenshots in order: v1.4 light=250, v1.5 light=250 tm=0.90, madVR 2...
by Narkyy
Mon Jul 16, 2018 4:15 pm
Forum: CUDA Filters
Topic: HDR -> SDR conversion
Replies: 591
Views: 687228

Re: HDR -> SDR conversion

Neat, bright spots look softer too. :salute:
by Narkyy
Fri Jul 13, 2018 11:56 am
Forum: CUDA Filters
Topic: HDR -> SDR conversion
Replies: 591
Views: 687228

Re: HDR -> SDR conversion

My bad, I thought it was obvious, the lighting is all weird on the window side. The plain white looks like saturation was applied to it and luminance dropped completely. https://thumbs2.imgbox.com/d3/75/KxYiRRse_t.png Sample: https://mega.nz/#!sVtAnAIQ!lOOwvKGOWy-ltqhafsNLeT1GvIaI9VBHfY9LyzWQmLk Scr...
by Narkyy
Fri Jul 13, 2018 11:46 am
Forum: CUDA Filters
Topic: HDR -> SDR conversion
Replies: 591
Views: 687228

Re: HDR -> SDR tonemapping

:hat:
There seems to be some issues with the update :(

v1.4
Image

v1.5
Image
by Narkyy
Tue Jul 10, 2018 5:54 pm
Forum: CUDA Filters
Topic: HDR -> SDR conversion
Replies: 591
Views: 687228

Re: HDR -> SDR tonemapping

Ideally saturation should only be adjusted for around highlights that cause these very saturated colors, as overall the default saturation is good.
I don't think anyone cares for Hable anymore :salute:
by Narkyy
Mon Jul 09, 2018 3:07 pm
Forum: CUDA Filters
Topic: HDR -> SDR conversion
Replies: 591
Views: 687228

Re: HDR -> SDR tonemapping

Yes sorry, there's mostly visible blocking around vivid/deep colors.
by Narkyy
Mon Jul 09, 2018 1:44 pm
Forum: CUDA Filters
Topic: HDR -> SDR conversion
Replies: 591
Views: 687228

Re: HDR -> SDR tonemapping

That would cause issues like this as well right? Not just in highlights

Image

Thank you for the hard work :hat:
by Narkyy
Sun Jul 08, 2018 12:15 pm
Forum: CUDA Filters
Topic: HDR -> SDR conversion
Replies: 591
Views: 687228

Re: HDR -> SDR tonemapping

I'm guessing he's comparing with the SDR version (from a SDR mastered Bluray). The center of the highlight (luma around 235) is wider with default settings, so "overblown". Either that or 235 is too high? I don't know. Mobius' peak setting does help because it doesn't affect the overall brightness, ...
by Narkyy
Sun Jul 08, 2018 11:37 am
Forum: CUDA Filters
Topic: HDR -> SDR conversion
Replies: 591
Views: 687228

Re: HDR -> SDR tonemapping

In order: peak=3, HDRTools tonemap
Regarding dmcs' issue, I guess peak=2 would fix the overblown highlight. That's usually a value that works well.

I just derailed from the initial problem with the "contouring" issue, sorry for that.
by Narkyy
Sun Jul 08, 2018 11:19 am
Forum: CUDA Filters
Topic: HDR -> SDR conversion
Replies: 591
Views: 687228

Re: HDR -> SDR tonemapping

I guess it's the same issue as this post http://rationalqm.us/board/viewtopic.php?f=14&t=617&start=320#p8494 Looks good only at high nits, but increasing that affects the whole frame. Another comparison with peak=3 and HDRTools 2.png 3.png Though like said before HDRTools is more complicated to unde...
by Narkyy
Sun Jul 08, 2018 10:19 am
Forum: CUDA Filters
Topic: HDR -> SDR conversion
Replies: 591
Views: 687228

Re: HDR -> SDR tonemapping

I'm not sure if it's what you mean as clipping, but on the edges going from very bright light to green it looks like squares instead of a smooth transition/gradient.
Mostly noticeable at lower light like the light=160 screenshot, the one at 500 looks good.
by Narkyy
Fri Jul 06, 2018 6:11 pm
Forum: CUDA Filters
Topic: HDR -> SDR conversion
Replies: 591
Views: 687228

Re: HDR -> SDR tonemapping

Old versions of madVR used to have a similar issue, fixed a while ago though. Took a screenshot from v.0.92.14 but madshi has been working on proper colors in highlights in the last few test builds, still waiting on a final decision. There's definitely some desaturation happening, in the past you co...
by Narkyy
Tue Jun 19, 2018 11:32 pm
Forum: CUDA Filters
Topic: HDR -> SDR conversion
Replies: 591
Views: 687228

Re: HDR -> SDR tonemapping

dmcs wrote:
Tue Jun 19, 2018 9:39 pm
In the manual of the version 1.4 says that the "gamma" parameter has a default value of 1.42. Could this be a typo?
Yes it's still following previous versions with default at 0.42
by Narkyy
Tue Jun 19, 2018 1:48 pm
Forum: CUDA Filters
Topic: HDR -> SDR conversion
Replies: 591
Views: 687228

Re: HDR -> SDR tonemapping

It looks good now, pretty much the same colors as HDRTools :hat:
Also where has Mobius been all this time? It's amazing the control you can have over highlights, which Hable didn't have :bow:
by Narkyy
Mon Jun 18, 2018 3:34 pm
Forum: CUDA Filters
Topic: HDR -> SDR conversion
Replies: 591
Views: 687228

Re: HDR -> SDR tonemapping

Here's a small sample of the part https://mega.nz/#!AVliwIqa!XSnOsoEAMGG8gdSbNnUEmLFuS82itWPnMR9hW8QvtYE Script for HDRTools 0.1, it errors with the latest 0.2 for some reason. ConvertYUVtoXYZ(Color=0,OutputMode=1, Gx=0.170,Gy=0.797,Bx=0.131,By=0.046,Rx=0.708,Ry=0.292,Wx=0.31271,Wy=0.32902) ConvertX...
by Narkyy
Mon Jun 18, 2018 12:23 pm
Forum: CUDA Filters
Topic: HDR -> SDR conversion
Replies: 591
Views: 687228

Re: HDR -> SDR tonemapping

You're right, there's a difference between none and mobius mostly only in highlights, mobius being much better at retaining detail and not overblowing the lighting. However the colors are still off, and increasing saturation doesn't restore the reds. I managed to get the old 1.2 version of the plugi...
by Narkyy
Mon Jun 18, 2018 11:21 am
Forum: CUDA Filters
Topic: HDR -> SDR conversion
Replies: 591
Views: 687228

Re: HDR -> SDR tonemapping

Thanks for the update :salute: There seems to be some issues with the tonemap parameters none and mobius are returning the same result, and hable is very dark in <150 luma (light param only affects high luma areas) Also the saturation looks off, the reds are unsaturated for some reason. In order: de...
by Narkyy
Sun Jun 03, 2018 2:34 pm
Forum: CUDA Filters
Topic: HDR -> SDR conversion
Replies: 591
Views: 687228

Re: HDR -> SDR tonemapping

I have a license already, I just can't use it for HEVC ;)
by Narkyy
Sun Jun 03, 2018 2:14 pm
Forum: CUDA Filters
Topic: HDR -> SDR conversion
Replies: 591
Views: 687228

Re: HDR -> SDR tonemapping

Yes, it is slow. I'm just mentioning it because the conversions seem accurate.
by Narkyy
Sun Jun 03, 2018 1:59 pm
Forum: CUDA Filters
Topic: HDR -> SDR conversion
Replies: 591
Views: 687228

Re: HDR -> SDR tonemapping

I'm not sure if it's of any use (since there's not much documentation about the code), but there's this plugin which does conversion from BT2020 (and others) to BT709, as well as linear HDR -> SDR https://github.com/jpsdr/HDRTools I've been able to get good results (other than the linear lighting) w...
by Narkyy
Fri May 25, 2018 10:57 pm
Forum: CUDA Filters
Topic: HDR -> SDR conversion
Replies: 591
Views: 687228

Re: HDR -> SDR tonemapping

I think light defaults for Gamma should be left like they are now, it all depends on the film tonemapped so it should be adjusted by the user.
Resized to 720p to take less space

default vs light=0.55
1.png
2.png
3.png
4.png
by Narkyy
Thu May 24, 2018 10:50 am
Forum: CUDA Filters
Topic: HDR -> SDR conversion
Replies: 591
Views: 687228

Re: HDR -> SDR tonemapping

I think white=2.5 for Hable is a bit overkill as default, a lot of highlights are overblown, it should be at least 5.
The old default of ~11 was too high
by Narkyy
Wed May 23, 2018 5:54 pm
Forum: CUDA Filters
Topic: HDR -> SDR conversion
Replies: 591
Views: 687228

Re: HDR -> SDR tonemapping

Noticed the same as I can see in your tests, highlights seem to clip to 235 a bit early with tm="gamma"
by Narkyy
Wed May 23, 2018 4:13 pm
Forum: CUDA Filters
Topic: HDR -> SDR conversion
Replies: 591
Views: 687228

Re: HDR -> SDR tonemapping

Ah yeah, I should've tried more than just w :)
Thanks!
by Narkyy
Wed May 23, 2018 3:20 pm
Forum: CUDA Filters
Topic: HDR -> SDR conversion
Replies: 591
Views: 687228

Re: HDR -> SDR tonemapping

Can the Hable parameters be changed with the new plugin? I'm not sure if I missed something in the readme or not.